Sledding as in riding a piece of plastic/foam/metal or snow tube down a hill. (Here in WI if you referred to snowmobiling as "sledding", people would think you mean the above type of sledding)
ANYWAYS, we shoveled a pretty good sized kicker yesterday. ~3 feet tall, 5 feet wide so impossible to miss. Pretty fun watching kids hit it.
Until this fat kid went off with a tube, spun 180, landed 8 feet away, popped the tube, fell, rolled into a tree, and cried for 10 minutes.